格言大意：读书人虽然有学问，但是亲身实践才是根本。

Main Idea: Although scholars have knowledge, they need practice to build up a solid basis.

纸上谈兵（Good at the art of war on paper only)

    战国时期赵国人赵括，从小就熟读兵书，谈起用兵的道理来，头头是道。赵王向派赵括做大将，率领军队抗击秦朝。大臣蔺相如表示反对，赵括的母亲也请求赵王不要派她儿子去。由于赵括没有实际作战经验，结果陷入秦军重围，被乱箭射死。
In the Warring States Period, Zhao Kuo of the country of Zhao was very familiar with books on the art of war form childhood. Every word he said about the art of maneuvering troops was clear and logical. The king of Zhao intended to make Zhao Kuo a general to lead the troops to fight against Qin.Minister Lin Xiangru opposed the appointment. Zhao Kuo’s mother also asked the king of Zhao not to charger her son with the mission. Zhao Kuo found himself tightly encircled and was killed by the troops of Qin owing to lacking practical war experience.